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NavBus Installation and Operation Manual

April 29th, 2009 · No Comments

NavBus is a NAVMAN proprietary system that allows multiple 3100 series instruments and NAVMAN chartplotters to share data and to use a single set of transducers. Clusters of up to four instruments are wired to a NavBus junction box which is then daisy chained via a two wire data cable to the next cluster and its NavBus junction box. Power may be run independently to junction boxes or you may choose to daisy chain the power as well.

These NAVMAN instruments can be connected by NavBus: 3100 Series family and any TRACKER 5000 Series chartplotters. Other compatible instruments can be connected to a NavBus system by NMEA connections. NMEA is an industry standard way of connecting instruments but it requires dedicated connections between instruments. NMEA cannot be converted to NavBus and shared using NavBus

Introduction
Correct installation is critical to the performance of the instruments. It is vital to read this manual and the documentation that comes with the instruments before starting installation.

Principals of NavBus
All setup data entered into one instrument is automatically sent to all other instruments of the same type. For example:
A transducer can be calibrated from any instrument which can display the transducer’s readings.

If the units (e.g. feet, metres, fathoms) are changed on one instrument then the same units are changed on all instruments. If setup data such as keel offset, speed damping or steer angle is set on one instrument then the same data is set on all instruments. The only setup data that is not shared with other instruments is backlight group, see below.

Backlight group
Each instrument can be assigned to a backlight group, which is 0, 1, 2, 3, or 4. If the backlight is changed on an instrument in group 1, 2, 3 or 4 then the backlight will automatically change in the other instruments in the same group. If the backlight is changed on an instrument in group 0 then no other.

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